multiple choice question\nwhat is the cell or organ that directly carries out a response to a stimulus…

multiple choice question\nwhat is the cell or organ that directly carries out a response to a stimulus called?\neffector\nintegrator\nreceptor
Answer
Brief Explanations:
In biological regulatory systems, an effector is the cell or organ that directly acts in response to a stimulus. A receptor detects the stimulus, an integrator processes the information, but the effector is the one that carries out the actual response.
Answer:
A. Effector